Car-coupling.



J. WILLISON.

CAR COUPLING. APPLICATION FILED' DEc.3'1. 1913. mam-:WED Auu. 10.1916.

Patented Oct. 17, 1916.

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. l. WILLISON.

CAR COUPLING.

APPLICATION FILED Dc.3I I9I3. IIIgIIEwEIJ AUG. Io. I9Is.

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Patented'v 00h17, 1916.

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UNITED sTATEs PATENT oEcE.

JOHN WILLISON, OF DERBY, ENGLAND, ASSIGNOR TO THE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO.

Applicationled December 31, 1913, Serial No. 809,601.

To all whom t may concern Be it known that I, JOHN WILLIsoN, a subject of the King of Great Britain, and a resident of Derby, county of Derby, England, have invented new and useful Improvments in Car-Couplings, of which the following is a specification, reference being had to the accompanying whichl Figure 1 is a plan of a pair of interlocked couplers embodying my improvements; Fig. 2 is va section on lines II--II of Fig. 1; Fig. 3 is a plan of a coupler with the parts in lowermost position; Fig. 4 is I,an elevation with the parts in lowermost position; Fig. 5 is a front elevation with the parts in lock-set position; Fi 6 is a section on lines VI-VI of Fig. 5; Flg. 7 is'a detail of the lock-setting mechanism, and Fig. 8 is a detail of the lock.

My invention relates to improvements in car couplers of the type shown in my pending application, Serial No. 114,292, filed August 10, 1916, and consists in mechanism for operating and lock-setting the lock.

Referrin to the drawings, A is the coupler-head, the lock and C the lock-set member. The lock-set member C has trunnions 2 by which it is pivoted tothe coupler- ,Y

head in suitable bearings 3 and may be held therein by a cotter .pin 4, as shown. Projecting member C .is an actuating arm 45, and extending forwardly from its central portion is a lock-set ledge or shelf 6. When the lock-set member C is mounted on its trunnions 2 in the bearings 3, it is adapted to have a limited bearings from a position-in which the actuating arm v5 isI upright (as is shown in dotted lines in Figs. 2 and 6) to the position in which the arm 5 is inclined isomewhat forwardly (as is shown in full lines in Figs. 3 and 4).. When the coupler is not in engagement with a corresponding coupler on/an opposing car, the lock-set member C will by gravity normally assume the position shown in Fig. 4, and when two couplerheads are interlocked', the engagement of the face 7 of the opposing-coupler with the actuating arm 5 compels it to assume the position shown in Fig. 6.

At the lower end of the incline on the bot` tom of the lock B is located a stop-shoulder 65 8,v which is adapted to coperate with the Specification of Letters Patent.

upwardly at one side of the lock-set' position.

pivotal movement upon saidY PatentedOct. 17, 1916.

Renewed August 10, 1916. Serial No. 114,293.

in Figs. 3 and 4, the lock-set shelf 6 is' dropped down out of the way to such an extent 4that it forms no obstruction to the free movement of the lock down the incline 9 on the coupler-head, so that with the arm 5 in its forwardly-inclined position, the lock will- .slide freely to its lowermostor locked positlon along the incline 9 of the couplerhead. When, however, the couplers are interlockedthe face 7 ofthe opposing coupler forces the actuating arm 5 to a substantially vertical position and rotates the lock-set member C about'its trunnions so that the shelf 6 rises into the positionshown in Fig. 2, in which it forms an obstructionor stop at the lowerend of the incline 9 ofthe coupler-head. When, subsequently, asv in the normal operation of unlocking, the lock Bis raised, this ledge or shelf 6 will engage the shoulder or stop 8 on the lock and will `thus prevent a return of the lock down the incline into the lowermost 4or loclng position. The lock will thereafter `be held supported by the movableshelf 6 until the interlocked couplers disengage or draw apart andpermit they slight amount of rotation ofy the member C which is necessary to retract its lock-set portion 6 from the position of Figs. 5 and 6 into that of Figs. 3 and 4, after which 'the lock will drop into lowermost The lock normally remains in lowermost position both prior to and after the making of ja' coupler engagement, although, if desired, the `parts may be placed inlock-set' osition. Y

The lock is preferably actuated by the lifting hook 10 which underlies the lock and the end 11 of which fits into the recess 12l of the lock. The hook 10 is actuated by a chain 13, which is attached to the eye 14 in the hook and which may be passedv laterally through suitable apertures inthe shank of the coupler. i

It is obvious that 'various modifications may be made in the mechanism which I have shown and described herein without departing from -my invention.

Having now described the nature of my said invention' and the best means I know of carrying the same into practical effect, I claim 1. In a carcoupler of the vertical plane type having in combination a coupler head, a gravity lock and a lock-set device, said lock-setv device comprising a gravity controlled member fitted to the coupler head and adapted to assume a supporting and a non-supporting relation to the lock, said member being held in supporting position b v contact with an opposing coupler head.

2. In a car coupler of the verticalplane type comprising a Agravity-actuated lock, a longitudinally extending recess in the coupler head, and a lock set member, said member being in form a bell crank lever pivoted to the coupler, one ofthe arms of the lever lying in the path of the coupler head and the other of said arms being adapted to be rotated into position to bear on the bottom of the lock yand to support it in lock-set position.

3. In a car coupler of the vertical plane type, a coupler head having a cavity therein, an inclined surface at the rear side of said cavity, a gravity actuated lock mounted upon said surface, a longitudinally disposed recess of Lshape in said lock and a hook shaped lifter seated in said recess and engaging the lock, the said lifter being adapted to be retracted rearwardly to actuate the lock rearwardly and upwardly on Said inclined surface.

JOHN VVILLISON. l Witnesses:

JOSEPH WILLARD, lV. J. SKERTEN. 

